PFM vs All-Ceramic Advantages — NDEB AFK MCQ
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Correct answer: D — Higher fracture resistance due to the metal framework, ability to achieve passive fit, longer clinical track record, and suitability for long-span FPDs
PFM crowns combine the strength and fracture resistance of a metal framework with the aesthetics of porcelain veneering. Advantages over all-ceramic crowns include: (1) higher fracture resistance (metal framework prevents catastrophic failure); (2) passive fit achievable with conventional casting techniques; (3) longest clinical track record (~50+ years of clinical data); (4) suitability for long-span FPDs (3+ units — all-ceramic has limitations for long spans); (5) ability to use conventional (non-adhesive) cementation. Disadvantages include: metal margin visibility, potential for metal allergies (rare), and less translucency compared to modern all-ceramic options.
Reference: Shillingburg – Fundamentals of Fixed Prosthodontics, 4th ed., 2012